ASSERT in empty output section with address

	* ldlang.c (lang_do_assignments_1): Correct "dot" inside ignored
	sections.
	* testsuite/ld-scripts/empty-address-4.d,
	* testsuite/ld-scripts/empty-address-4.s,
	* testsuite/ld-scripts/empty-address-4.t: New test.
	* testsuite/ld-scripts/empty-address.exp: Run it.
5 files changed